1980869267520 has 1344 divisors, whose sum is σ = 8223211196928. Its totient is φ = 431308800000.

The previous prime is 1980869267497. The next prime is 1980869267527. The reversal of 1980869267520 is 257629680891.

1980869267520 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 86 + 9 + 26 + 7 + 520 = 666.

It is not an unprimeable number, because it can be changed into a prime (1980869267527) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3295955220 + ... + 3295955820.

It is an arithmetic number, because the mean of its divisors is an integer number (6118460712).

Almost surely, 2^{1980869267520} is an apocalyptic number.

1980869267520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980869267520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4111605598464).

1980869267520 is an abundant number, since it is smaller than the sum of its proper divisors (6242341929408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1980869267520 is a wasteful number, since it uses less digits than its factorization.

1980869267520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 1980869267520 in words is "one trillion, nine hundred eighty billion, eight hundred sixty-nine million, two hundred sixty-seven thousand, five hundred twenty".